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2025-01-16
04:44
QED$_\text{r}$: a finite-volume QED action with redistributed spatial zero-momentum modes / Di Carlo, Matteo (CERN ; Edinburgh U.) ; Hansen, Maxwell T. (Edinburgh U.) ; Hermansson-Truedsson, Nils (Edinburgh U. ; Lund U., Dept. Theor. Phys.) ; Portelli, Antonin (Edinburgh U.)
We present a novel finite-volume QED action designed to improve the infinite-volume extrapolation of hadronic observables in precision lattice QCD+QED calculations. [...]
CERN-TH-2025-001 ; arXiv:2501.07936. -
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2025-01-15
05:00
Dynamics of Heavy Quarks in Strongly Coupled $\mathcal{N}=4$ SYM Plasma / Rajagopal, Krishna (MIT, Cambridge, CTP) ; Scheihing-Hitschfeld, Bruno (MIT, Cambridge, CTP ; Santa Barbara, KITP) ; Wiedemann, Urs Achim (CERN)
We calculate the probability distribution $P({\bf k})$ for a heavy quark with velocity $v$ propagating through strongly coupled $\mathcal{N}=4$ SYM plasma in the 't Hooft limit at a temperature $T$ to acquire a momentum ${\bf k}$ due to interactions with the plasma. [...]
CERN-TH-2025-008 ; MIT-CTP/5822 ; arXiv:2501.06289. - 43.
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2025-01-14
04:54
On the extraction of $\alpha_\textit{em}(m_Z^2)$ at Tera-$Z$ / Riembau, Marc (CERN)
The current projected sensitivity on the electromagnetic coupling $\alpha_\textit{em}(m_Z^2)$ represents a bottleneck for the precision electroweak program at FCC-ee. [...]
CERN-TH-2025-005 ; arXiv:2501.05508. - 7.
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2025-01-10
04:11
ALPs coupled to gluons in the GeV mass range -- data-driven and consistent / Ovchynnikov, Maksym ; Zaporozhchenko, Andrii
We present a new, fully consistent framework for describing GeV-scale axion-like particles (ALPs) coupled to gluons. [...]
CERN-TH-2025-006 ; arXiv:2501.04525. - 5.
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2025-01-04
04:17
UHECR measurements and physics at man-made accelerators: mutual constraints / Garzelli, Maria Vittoria (Hamburg U., Inst. Theor. Phys. II ; CERN)
Measurements of the products of UHECR interactions with the Earth's atmosphere, as obtained in Extended Air Shower experiments, offer important information concerning hadronic interactions, which for some aspects overlaps and for many others complements the information extracted by measurements of collisions at human-made accelerators. [...]
CERN-TH-2024-227 ; arXiv:2501.00178. - 8.
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2025-01-01
04:35
Precise Determination of the Strong Coupling Constant from Dijet Cross Sections up to the Multi-TeV Range / Ahmadova, Fazila (Garching, Max Planck Inst. ; Zurich U.) ; Britzger, Daniel (Garching, Max Planck Inst.) ; Chen, Xuan (Shandong U.) ; Gäßler, Johannes (KIT, Karlsruhe, ETP) ; Gehrmann-De Ridder, Aude (Zurich U. ; Zurich, ETH) ; Gehrmann, Thomas ; Glover, Nigel (Zurich U. ; Durham U., IPPP) ; Gwenlan, Claire (Oxford U.) ; Heinrich, Gudrun (KIT, Karlsruhe, TP) ; Huss, Alexander (CERN) et al.
We determine the value of the strong coupling $\alpha_\text{s}$ and study its running over a wide range of scales as probed by the dijet production process at hadron colliders, based on an NNLO QCD analysis of LHC dijet data. [...]
CERN-TH-2024-224 ; KA-TP-25-2024 ; MPP-2024-260 ; ZU-TH/01/25 ; arXiv:2412.21165. - 12.
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2025-01-01
04:32
Planar Six-Point Feynman Integrals for Four-Dimensional Gauge Theories / Abreu, Samuel (CERN ; U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Monni, Pier Francesco (CERN) ; Page, Ben (Gent U.) ; Usovitsch, Johann (CERN ; Humboldt U., Berlin, Inst. Math. ; Humboldt U., Berlin)
We compute all planar two-loop six-point Feynman integrals entering scattering observables in massless gauge theories such as QCD. [...]
CERN-TH-2024-221 ; HU-EP-24/40-RTG ; arXiv:2412.19884. - 32.
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2024-12-25
06:22
Fractional Hydrodynamic Transport from the Witten Anomaly / Davighi, Joe (CERN) ; Lohitsiri, Nakarin (Durham U., Dept. of Math.) ; Poovuttikul, Napat (Chulalongkorn U.)
We study the physical consequences of 't Hooft anomalies in the high-temperature limit of relativistic quantum field theories with $SU(2)$, or more generally $USp(2N)$, global symmetry. [...]
CERN-TH-2024-223 ; arXiv:2412.17650. - 30.
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2024-12-25
05:19
Updated predictions for toponium production at the LHC / Garzelli, M.V. (King's Coll. London ; CERN ; Hamburg U., Inst. Theor. Phys. II) ; Limatola, G. (Hamburg U., Inst. Theor. Phys. II ; DESY) ; Moch, S.-O. (Hamburg U., Inst. Theor. Phys. II) ; Steinhauser, M. (KIT, Karlsruhe, TTP) ; Zenaiev, O. (Hamburg U., Inst. Theor. Phys. II)
We provide an update on QCD predictions for top-quark pair production close to threshold including bound state effects at the Large Hadron Collider. [...]
CERN-TH-2024-222 ; DESY 24-207 ; P3H-24-104 ; TTP24-048 ; arXiv:2412.16685. - 10.
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2024-12-24
04:33
Mixed QCD-EW corrections to the neutral-current Drell-Yan process / Armadillo, Tommaso (Milan U. ; INFN, Milan) ; Bonciani, Roberto (Florence U. ; INFN, Rome ; Rome U.) ; Buonocore, Luca (CERN) ; Devoto, Simone (Gent U.) ; Grazzini, Massimiliano (Zurich U.) ; Kallweit, Stefan (Zurich U.) ; Rana, Narayan (NISER, Jatni) ; Vicini, Alessandro (Milan U. ; INFN, Milan)
We report on the complete computation of the mixed QCD-electroweak corrections to the neutral-current Drell-Yan process. [...]
CERN-TH-2024-199 ; ZU-TH 56/24 ; TIF-UNIMI-2024-18 ; arXiv:2412.16095. - 27.
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